A few questions about QR and promotions. Need input for a startup

Question

iPhone

Hello, habravians!
For one idea, input data is required, namely:

1) Have you used QR codes at least once in your life, ate and where (on the street, indoors or at home)?
2) Have you at least once participated in any promo of any brand with codes on the packaging (under the lid, stickers, labels, etc.)?

Answer 1

1) Yes, in our city there was a poster with a huge QR code.
2) Yes. Actually, after reading this QR code, a number was given, when calling to which they gave 30 rubles to a mobile phone. (MTS).

Answer 2

1) In the subway, at home (sites).
2) Yes, club advertising (discount if you tell the password from the QR code).
Can the house be outside?

Answer 3

1) Yes, at home (admin2011.ru :) ), at the university.
2) No.

Answer 4

1) Yes. Links to android software - time. I was in Lviv, there in the historical center of the city almost every building has a QR code with a description stuck on it, it’s convenient. This is two.
2) No.
Why Q&A? Do a normal poll.

Answer 5

1) It is very convenient when there is a QR code with the contents of the business card on the business card, you can save it directly to your phone.
2) No.

Answer 6

1) Yes, at home.
2) Yes.

Answer 7

1. Sometimes I transfer small text information from phone to laptop and vice versa
2. No